DeepSeek Harness Plugin: dsh-project-session-store

`dsh-project-session-store` is a DeepSeek Harness (DSH) plugin designed to address the fragmentation of session logs. It saves the session logs of different projects separately in each project's `.dsh/sessions/` directory, enabling project-isolated storage. Developers can use this plugin to persist logs locally over the long term and archive them by project. Since official documentation is unavailable, it is recommended to visit the GitHub repository directly to view the source code and installation steps. When using it, be careful to review the source code and process permissions.